Re: Citation syntax: a revised proposal

[Richard Lawrence <richard.lawrence@berkeley.edu>]

Nicolas Goaziou <mail@nicolasgoaziou.fr> writes:

>> The first issue is that the parser includes trailing punctuation in
>> “bare” @key citations.  So the following does not work as expected (the
>> :key includes the period): “This was demonstrated most recently by
>> @Smith2015.”  I’m not sure what the right approach is – one option
>> would be to say that keys can contain punctuation, but must end (and
>> begin) with an alphanumeric character.
>
> I'll update the parser once there is a new syntax for keys. At the
> moment, it is correct wrt syntax.

Sorry, I may not have emphasized this enough, but in the grammar, I wrote:

  - A KEY optionally begins with `-', and obligatorily contains `@' or
    `&' followed by a string of characters which begins with a letter
    or `_', and may contain alphanumeric characters and the following
    *internal* punctuation characters:
       :.#$%&-+?<>~/
       
The `internal' here was meant to express exactly what Aaron said: keys
can contain punctuation, but may not end (or begin) with punctuation.

Best,
Richard